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JIM 211 ADVANCED CALCULUS
2018/2019
Question 1 ( 2.15
- 2.50 pm )
( a ) Given x2 -y2+2u2 + 3v2 -7 = 0
2x2 -3y2 -3uv -2 = 0
Find
( i ) ꝺu / ꝺx
Question 2 ( 2.50 -
3.25 pm )
( a ) Evaluate
( i )
ʃ 02
ʃ 0[ 4- ( x )2 ] 1/2
x( x2 + y2 )-1/2dydx
( i i )
ʃ
ʃ D 2x dxdy
( b ) Evaluate
( i )
ʃ 1e
ʃ π /2π
ʃ 1n2ylny
ex ( 1 / y )sin y dxdydz
( i i ) ʃ
( 50 marks )
Queston 3 ( 3.25 - 3.55 pm )
( a ) State the definition for each of the following:
( i ) increasing sequence
( ii ) bounded sequence
( iii ) convergence of a sequence
( iv ) Cauchy sequence
a 1=1,a n + 1= 3-( 1/an) , n> 1
Show that
( i ) { an } is increasing
( ii ) an< 3,for all n
( iii ) { an } is converging
( c ) Show that the sequence { 1 /n } is Cauchy
( a ) State the Squeezing Theorem for sequences.
Hence ,use the theorem to evaluate
limx->α x sin ( 1/x
( 30 marks )
( b ) Calculate the following limits :
( i ) limx->1 ( x3 - x2 + x -1 ) / ( x + ln x -1)-1
( ii ) limx->1 [ ln ( x + 1 )-1 - ( 1 / x ) ]
( iii) limx->1 [ ( e3x- 1 ) / tan x ]
( iv) limx->1 [( 3x -1 ) / ( x )]
( 70 marks )
Question 5 ( 4.30 - 5.15 pm )
( a ) Determine whether each of the following series converges or diverges
infinity
( i ) ∑ ( e2n / nn )
n = 1
( ii ) infinity
∑
( nn / n
! )
n=
0
( iii ) infinity
∑
( 1 / ink )
k = 2
k = 2
( iv ) infinity
∑
[ 3k / 4k
( k + 1 ) ]
k = 1
( 60 marks )
( 60 marks )
( b ) Find the taylor's polynomial of degree 3
about x = 1 and the remainder for
the function f given by
f ( x ) = xex
( 40 marks )
=========END=============
JIM 201 Linear Algebra
2018/2019
1. Consider the matrix
A = 2 3 4
2 1 1
-1 1 2
( a ) Calculate
( i ) determinant A
( ii ) adj ( A )
( iii ) A-1
( iv ) determinant adj ( A )
( v ) A adj( A )
( vi ) Reduced row-echelon form of A
( vii ) Solution of X if 2
AX = -1
3
( 60 MARKS )
( b ) Let B= [ bij ]3x3 be a 3x3 matrix and I is an identity
matrix.
Given that
E13( -2 )E23( 1 )E3 (1/2 )E32
(-1 )E12( -1 )E12(-1)B=1
Find
B-1 and B
( 40 marks )
2 ( a ) Given the system of linear equations
x + 2y + 3z = 6
2x -3y +2z = 14
3x + y -z + -2
Solve the system using the method of
( i ) Cramer's Rule
( ii ) Gauss-Jordan elimination
( 60 marks )
( b ) Determine the values of constant k if the system of linear equations
x + 2y -3z = 4
3x -y +5z =2
4x + y + ( k2 -14 ) z =k+2
has
( i ) unique solution
( ii ) infinitely many solutions
( iii ) no solutions
( 40 marks )
3 ( a ) State the conditions that a subset W of a vector space is a subspace of V
( 20 marks )
( b ) Show that each of the following vector is a subspace of V
( i ) S = { 3y / y e R } , V = R2
y
( 40 marks )
2 ( a ) Given the system of linear equations
x + 2y + 3z = 6
2x -3y +2z = 14
3x + y -z + -2
Solve the system using the method of
( i ) Cramer's Rule
( ii ) Gauss-Jordan elimination
( 60 marks )
( b ) Determine the values of constant k if the system of linear equations
x + 2y -3z = 4
3x -y +5z =2
4x + y + ( k2 -14 ) z =k+2
has
( i ) unique solution
( ii ) infinitely many solutions
( iii ) no solutions
( 40 marks )
3 ( a ) State the conditions that a subset W of a vector space is a subspace of V
( 20 marks )
( b ) Show that each of the following vector is a subspace of V
( i ) S = { 3y / y e R } , V = R2
y
b 0
( iii ) S ={ x / x + y = 0, x,y e R } , V = R2
y
( 40 marks )
( c ) Let T : V ->W be a linear transformation.
State the definition for each of the following :-
( i ) Kernel of T
( ii ) Range of T ( 20 marks )
( d ) Given that T : R2 -> R where T(x,y ) = x + y
Find the kernel and range of T ( 20 marks )
4 ( a ) Let matric A be diagonalizable.Then there exist two matices P and D
such that P-1 AP = D
Show that An = PDnP-1
by induction ( 30 marks )
( b ) Given the matrix
2 1 1
A= 1 2 1
0 0 1
Find
( i ) the characteristic polynomial
( ii ) eigenvalues
( iii ) eigenvectors
( iv ) the matrix P that diagonalizes A ( 70 marks )
5 ( a ) State the definition for each of the following
( i ) orthogonal set
( ii ) orthonormal set
( iii ) orthogonal basis
( iv ) orthonormal basis ( 40 marks )
( b ) Determine whether each of the following set is orthogonal or orthonormal
( i ) S = { ( 1,0,0),(0,1,0),( 0,0,1) } c R3
( ii ) S = { ( 1,1,1),(-2,1,1),( 0,-1,1) } c R3
( c ) Use Gram -Schmidt process to find an orthogonal basis and orthonomal basis from the set
S = { ( 1,1,0),(-1,-1,1),( 1,2,4) } c R3
( 40 marks )
=============END=================
JIM 213 Differential Equations I
2018/2019
1 ( a ) Find the solution for the following differential equation xy' + 2y = x3 , y( 1 ) = 2
( 40 marks )
( b ) Show that y = 1 / ( cx2-x3 )
where C is a constant, is the general solution
for the Bernoulli equation
dy/dx + ( 2/x )y = x2 y2
2( a ) Verify that the integrating factor of
x2y' = 3y + x4
is u( x ) = (e3 )1/x
( 20 marks )
( b ) Show that the following equation
( exsinx-2ysinx ) dx = -(2cosx +excosy)dy
is an exact equation.Hence ,find the general solution
( 30 marks )
( c ) Find the explicit solution for the following
initial-value problem
dy /dx - xe2y = e2y sinx, y( 0 ) = 0
( 50 marks )
3 ( a ) The population of a town P( t ) is modelled by
the following differential equation
dP/dt = kP
at time t.The initial population of 5000 increase
by 20% in 5 years .What will be the population
in 12 years ?
( 30 marks )
( b ) A 250-Volt electromotive force is applied to
an RC series circuit where the resistance is
1000 ohms and the capacitance is 5x 10-6 farad.
Find the charge q( t ) on capacitor if the
initial charge is q( 0 ) =0.
Hence,find the current I( t )
Hint : Kirchoff's Second Law, RI + ( 1/C ) q =E( t )
( 30 marks )
( c ) Given LRC series circuit
L d2q / dt2 + Rdq/dt + ( 1 / C ) q = E( t )
with L = 1 Henry, R= 20 ohms, C= 0.0005 farad
and E( t ) = 300 volt
( i ) Show that the general solution of the charge
on the capacitor is
q( t ) = e-10t [A cos( 10t ) + B sin( 10t) ] + 1.5
( ii )Hence,find the particular solution
if q( 0 ) = 1 and I( 0 ) = 0
( iii ) What is the charge on the capacitor when
t ->infinity ?
( 40 Marks )
4( a ) Solve the initial value problem of Cauchy-Euler
differential equation
x2 d2 y/dx2 - ( 3x )dy/dx + 3y = 3x4
y ( 1 ) = 6 , y' ( 1 ) = 7
( b ) Use the Laplace transform to solve the following initial-value problem
dy/dt -2y = e-t , y( 0 ) = 0
( 30 marks )
( c ) Using Laplace transform, prove that the particular
solution of
y" + 4y' + 4y = e-2t , y( 0 ) =1 , y'( 0 )= 1
is
y( t ) = ( 1/6 )t3 e-2t + e-2t + 3te-t
( 40 marks )
5 Given a system of homogenous linear differential equations
dx /dt = x +y +2z
dy/dt = x + 2y +z
dz/dt= 2x + y + z
( a ) Write the system of equations in the form
dX /dt = AX
where x and identify the matric A
A = y
z
( 15 marks )
( b ) Show that the characteristic equation is
k3 -4k2- k + 4 = 0 , k = eigen values
( c ) Find all eigen values and the corresponding
eigenvectors
( 50 marks )
( d ) Hence, write down the general solution of the
given system
( 10 marks )
================END=================
JIM 212 Statistical Method
Answer ALL Four QUESTIONS
Question 1
An insurance company wants to know if the amount of life insurance depends on the incomes of a person.The research deparment at the company collected information on six persons.The table below lists the annual income ( in thousands of RM) and the amount( in thousands of RM ) of life insurance policies for these six persons.
Annual Income 62 78 41 53 85 34
Life Insurance 250 300 100 150 500 75
( a ) Find the regression line y = a + bx with annual
income as an independent variable and amount
of life insurance policy as a dependent variable
( 50 marks )
( b )Give a brief interpretation of the values of a and b
calculated in part ( a )
( 20 marks )
( c ) What is the estimated value of the life insurance
for a person with an annual income of RM55,000 ?
( 10 marks )
( d ) One of the persons in this sample has an annual
income of RM78,000 and RM300,000 of life
insurance.What is the predicted value of the life
insurance for this person ?.Find the error for
this observation. ( 20 marks )
Question 2
( a ) Describe in your own words a test of independence and a test of homogeneity.Give example for each
( 20 marks )
( b ) To make a test of indepence or homogeneity,what should be the minimum expected frequency for each cell ? What are the alternatives if this condition is not satisfied ?
( 20 marks )
( c ) Two drugs were administered to two groups of randomly assigned 60 and 40 patients,respectively to cure the same disease.The following table gives information on the number of patients who were cured and not cured by each of the two drugs
CURED NOT CURED
DRUG I 44 16
DRUG II 18 22
Test at the significance level if the two drugs are similar in curing the patients ( 60 marks )
Question 3
( A ) A university alumni office wants to compare the time taken by graduates from three majors to find their first job after graduation.A random sample of eight business majors,seven computer science majors and six engineering majors who graduated in 2017 were taken
The following table list the time ( in day ) taken to find their full - time job after graduation
Business Comp Science Engineering
36 56 26
62 13 51
35 24 63
80 28 46
48 44 78
27 47 34
76 20
44
At the 5% significance level,can you conclude that the mean time taken to find their first job for all 2017 graduates in these fields are the same ?
( 50 marks )
( b ) The two -way table below gives data for a 2x2 factorial experiments per factor.
Factor B
Low High
Low 29 47
35 42
Factor A
High 12 28
17 22
Construct the ANOVA table for this experiment and do a complete analysis at alpha = 0.05
Question 4
( a ) Two different devices for measuring suphr monoxide in the atmosphere were compared in a test for measuring air pollution.The following data was obtained
Sulphur Monoxide ( parts per million )
Device A Device B
0.96 0.68 0.87 0.57
0.82 0.65 0.74 0.53
0.75 0.84 0.63 0.88
0.61 0.59 0.55 0.51
0.89 0.94 0.76 0.79
0.64 0.91 0.70 0.84
0.61 0.77 0.69 0.63
( 50 marks )
( b ) The following table gives the burning times ( in minutes ) of four fabrics coated with inflammable materials
Fabric Burning Times ( Minutes )
1 18 17 18 17
2 12 11 11 11
3 15 9 13 7
4 14 12 8 13
Are there any differences in the burning times of the four fabrics ? .Use alpha = 0.01
( 50 marks )
=============END===============
Assalamualaikum...tq tuan.blog yang bermanfaat dan membantu.kalau tidak keberatan mohon tuan bagi info tentang subjek math :
ReplyDeleteJIM 101/4 - Calculus
JIM 106/4 - Elementary Statistics
JIM 201/4 - Linear Algebra
JIM 211/4 - Advanced Calculus
JIM 212/4 - Statistical Methods
Saya adalah pelajar PJJ Pengurusan USM tahun 2.saya cadang nak ambil minor subjek math ni.adakah subjek ni mirip math moden @ add math masa SPM. Untuk makluman tuan saya dapat A1 untuk subjek math moden dan P7 untuk subjek add math masa SPM 1998.adakah saya mampu ambil subjek ini.terima kasih banyak-banyak sudi respon kepada saya.atau tuan boleh kontak saya via wasap 013-5339795.tq senior.....
Waalaikummussalam.
ReplyDeleteJika sdr mempunyai asas dalam Add Maths SPM,ianya sudah mencukupi untuk mengikuti kursus JIM .Ini kerana perkara asas tidak akan diajar lagi memandangkan sdr akan belajar perkara baru untuk sesuatu topik itu.Sebagai contoh topik pengamiran dalam JIM 211 Advanced Calculus,melibatkan double dan triple integration.Secara kasarnya, untuk kes ini, anda perlu lakukan single integration terlebih dahulu ( pengamiran yg biasa kita lakukan di peringkat Add Maths SPM ).Di sini pensyarah tidak akan tunjuk bagiamana melakukannya tetapi akan terus tunjukkan utk lakukan double atau triple integration.Setakat ini, sy berpendapat jika kita dah ada asas dlm Add Maths, ia banyak membantu.